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atguigu_spirngcloud2020's Issues

关于Eureka单机版和集群版 服务无法注册的问题

阳哥你好, 我跟着你的课程学习到了eureka的部分

现在问题是这样的:
Eureka的注册中心不能够找到本地启动的其他服务。

代码我是跟着你手敲的。
eureka注册中心,无论是单机版还是集群版,启动都没有问题。
我测试过将eureka注册中心自己注册到eureka服务中
网页上可以显示出当前以注册实例:CLOUD-EUREKA-SERVER

可是当我启动PaymentOrder服务之后,eureka网页上却显示不出来这两个实例。


这是7001的application.yml 其他的都是大同小异

server:
  port: 7001

spring:
  application:
    name: eureka-service

eureka:
  instance: #Eureka实例名称
    hostname: eureka7001.com
  client:
    registerWithEureka: true  #false表示不向注册中心注册自己。
    fetchRegistry: false     #false表示自己端就是注册中心,我的职责就是维护服务实例,并不需要去检索服务
    service-url:
      # 设置与Eureka Server交互的地址查询服务和注册服务都需要依赖这个地址
      defaultZone: http://eureka7002.com:7002/eureka
  server:
    enableSelfPreservation: false   #开发阶段关闭eureka自我保护机制

7001的图片
7002的图片
微服务图片

这里是当前出错的项目地址

Hystrix其内注解使用

阳哥你好,我想问下Hystrix中的 @EnableCircuitBreaker 注解 和 @EnableHystrix ,都是添加的Hystrix 熔断器,为什么 cloud-provider-hystrix-payment8001 和 cloud-consumer-feign-hystrix-order80 项目中添加的注解不一样.
还请阳哥指点

Hystrix接口超时自动降级 但被调用者还在继续执行

关于springcloud微服务调用的问题,我在P55做hystrix服务降级的时候,比如说A服务的F1方法调用了B服务的F2方法,F2方法上有服务降级,F1调用F2之后,F2就开始执行,但是F2执行一半的时候发现服务超时了,需要降级,就返回了降级方法里的内容,调用方F1就认为F2方法调用失败了,但实际上F2方法还是在继续执行直到方法结束,这就会造成数据不一致的问题了,如果涉及到数据操作,这里正确的应该是事务回滚了吧,但我现在不知道怎么停了F2这个线程,把事务回滚了,希望大家了解的指导我一下,谢谢

nacos 集群部署

集群环境搭建成功,也能成功访问 IP:1111/nacos/# ,但是客户端无法注册到 服务列表中.报错,请阳哥指导下;

image
在网上找了方案,也没能解决……

Gateway网关模块Bug

老师好,我在gateway模块中遇到这样的问题,现在不知道如何解决,请老师帮忙,

Spring Webflux is missing from the classpath, which is required for Spring Cloud Gateway
 at this time. Please add spring-boot-starter-webflux dependency.

seata服务在调用了有20秒超时的扣除余额的微服务后,依然扣除了余额

老师,您好,关于您的课程 (https://www.bilibili.com/video/BV18E411x7eT?p=147) 第147节里面的内容,我按视频里敲了一遍后,发现一个问题,我以为我敲漏了,然后下载您的源代码运行后,还是有这个问题:
当用了@GlobalTransactional(name = "fsp-create-order",rollbackFor = Exception.class) 后,在调用扣除余额的微服务时,用了【//暂停几秒钟线程 try { TimeUnit.SECONDS.sleep(20); } catch (InterruptedException e) { e.printStackTrace(); } 】后,订单表确实没有新订单创建、库存表确实没有扣减库存;但是账户表,刚开始是没有扣减余额,但过了20秒后,余额扣减了。
也就是从1订单-->到2库存-->到3扣余额,前二步都回滚了,但第3步的微服务,自己等待自己的超时时间完成后,依然执行了自己的流程。
请问如何解决这类问题?
snipaste_20210121_232746

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